KR200347035Y1 - Elevator apparatus and safety device used in the apparatus - Google Patents

Abstract

The present invention relates to an elevator having a safety device that can prevent the elevator from moving in the open state of the elevator. The elevator apparatus has a detector and a position providing unit for detecting whether the elevator is moved over a set distance in a state where the elevator door is opened, and a rope stopper for stopping the rope when the elevator is moved over a set distance.

Description

Elevating device and safety device used for it {ELEVATOR APPARATUS AND SAFETY DEVICE USED IN THE APPARATUS}

The present invention relates to a lift device and a safety device used therein, and more particularly, a lift device and a safety device used to prevent the lift from being lifted while the door of the lift is open.

In general, the lifting device is a device for moving people or cargo in a high-rise building. On the upper part of the passageway where the elevator operates, a pulley with a strong rope is fixedly installed. One end of the pulley is combined with a lift to carry people or cargo, and the other end of the pulley is combined with a balance weight similar to the weight of the elevator. As the pulley is rotated by the drive motor, the elevator is lowered in the lifting passage.

Elevators are equipped with various safety devices for the safety of passengers. For example, as a safety device, a brake device that stops the elevator when the elevator moves more than a certain ratio than the usual moving speed in case the rope is broken and the elevator falls down, and a shock that can minimize the impact when the elevator falls to the floor. There are relaxation devices.

If the elevator is operated out of control without the door of the elevator closed, passengers in the elevator may be injured. Conventionally, a safety device for this has not been provided, and a safety device for this has recently been developed, but its achievements are very insufficient.

The object of the present invention is to provide a safety device that can stop the movement of the elevator when the elevator is moved in the state that the door of the elevator is open, and the lifting device using the same.

1 is a view schematically showing the lifting device of the present invention;

2 is a view schematically showing the configuration of a safety device according to an embodiment of the present invention;

3 is a perspective view showing an example of the position provider and the detector of FIG.

4 is a plan view showing a state where the locator is inserted into the groove of the detector;

5 is a perspective view illustrating a modified example of the sensing unit of FIG. 1;

FIG. 6 is a view schematically illustrating a lift apparatus using the sensing unit of FIG. 5; FIG.

7 is a perspective view schematically showing the rope lock of FIG. And

8 to 10 are views showing a process of operating the safety device according to the present invention.

Explanation of symbols on the main parts of the drawings

100: lift 200: pulleys

300: rope 400: counterweight

500: safety device 520: location provider

540: detector 542: reference position detector

544: Upper part (first or higher position) detector

546: lower (second or higher position) detector

560 controller 580 rope fixing

582: fixing plate 584: moving plate

586: moving plate driving unit

In order to achieve the above object, the lifting device of the present invention includes an elevator disposed in an elevator path and one end of which is coupled to the elevator, a rope moved by rotation of a pulley, and the elevator is more than a set distance in a state in which the door of the elevator is open. It has a safety device to stop the elevator when moved. The safety device includes a position provider, a detector, a rope stabilizer, and a controller. The location provider is fixedly installed in the lifting passage, and the sensing unit is installed in the elevator to receive the location information of the elevator from the location provider. The controller receives an abnormal signal from the sensing unit when the elevator moves more than the set distance, and operates the rope stabilizer when the abnormal signal is received while the elevator door is opened.

According to an example, the detection unit is a reference position sensor for detecting a reference position which is the position of the elevator when the elevator is stopped and the door of the elevator, the spaced apart from the reference position detector by the set distance and the elevator A first abnormality position sensor for detecting whether a position is moved below the set distance, and located at a distance apart from the reference position detector by the set distance, and information on whether the elevator is moved above the set distance. It includes a second abnormal position detector for detecting. The sensing unit may further include a support rod installed on an upper wall of the elevator, wherein the reference position sensor, the first abnormal position sensor, and the second abnormal position sensor are rod-shaped horizontally in one direction from the support rod. And a body having a groove formed therein, the groove being a passage through which the locator passes and which is formed through the upper and lower sides.

The rope retainer is a fixed plate fixed to one side of the passage to which the rope is moved, a moving plate which is positioned to face the fixed plate on the other side of the passage where the rope is moved, the moving plate by the control of the controller to the fixed plate And a driver for moving forward and backward. Preferably the rope anchor is installed in the machine room located above the hoistway.

According to another example, the elevating device is an elevator, which is disposed in the elevator passage, one end is coupled to the elevator and the rope is moved by the rotation of the pulley, and when the elevator is moved more than a set distance in the state of the elevator door is opened Have a safety device to stop. The safety device is at least one detector fixedly installed in the lifting passage, a position providing device for providing the position information of the elevator to the elevator, the rope fixing device for holding the rope to stop, and the elevator And a controller for receiving an abnormal signal from the detector when the moving distance is greater than the set distance and operating the rope stabilizer when the abnormal signal is received while the door of the elevator is opened. The position providing unit is provided with a reference position providing unit for providing a reference position, which is the position of the elevator when the elevator is stopped and the door of the elevator is opened, spaced apart up from the reference position providing unit by the set distance. A first or more position providing unit that informs the detector of information about whether the elevator is moved below the set distance or more, the reference position providing unit is positioned downward by the set distance, and the elevator moves above the set distance. And a second abnormality position providing unit for notifying the detector of information on whether or not it is. The position providing unit further includes a support rod installed in the elevator, and the reference position providing unit, the first or more position providing unit, and the second or more position providing unit extend in a rod shape horizontally from the support rod in one direction. Is formed. The detector penetrates up and down and the front face is opened to form a body having a groove, which is a passage through which the reference position providing unit, the first ideal position providing unit, and the second ideal position providing unit pass. It has a sensor that detects whether it passes through.

The rope retainer is a fixed plate fixed to one side of the passage to which the rope is moved, a moving plate which is positioned to face the fixed plate on the other side of the passage where the rope is moved, the moving plate by the control of the controller to the fixed plate And a driver for moving forward and backward.

Hereinafter, an embodiment of the present invention will be described in more detail with reference to FIGS. 1 to 10. Embodiment of the present invention may be modified in various forms, the scope of the present invention should not be construed as being limited by the embodiments described below. This embodiment is provided to more completely describe the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings are exaggerated to emphasize a clearer description.

1 is a view schematically showing the lifting device 1 of the present invention. An elevator passage 120 through which the elevator 100 is moved is provided in the building 10 having a plurality of floors, and a machine room 140 in which elements for driving the elevator 100 are installed is disposed at the uppermost floor. . Referring to FIG. 1, the elevator apparatus 1 includes an elevator 100, a pulley 200, a rope 300, a balance weight 400, and a safety device 500. The pulleys 200 are fixedly installed in the machine room 140 and include a rotating pulley 220 which is coupled to the rotating shaft 222 of the motor to rotate and an auxiliary pulley 240 which is installed at a predetermined distance therefrom. One or a plurality of auxiliary pulleys 240 may be installed, and only the rotary pulley 220 may be installed without the auxiliary pulley 240. Rotating pulley 220 and the auxiliary pulley 240, the rope 300 is spanned, one end of the rope 300 is coupled to the elevator 100, the other end of the rope 300 is coupled to the counterweight 400. Although not shown, the guide rail for guiding the movement of the elevator 100 is installed in the lifting passage 120.

When the elevator 100 reaches the lift position of each floor, the elevator 100 stops and the door of the elevator 100 opens. Then, when the passenger rides or descends, the door of the elevator 100 is closed and the elevator 100 is moved. The series of processes described above are performed by an elevator control system (not shown). However, the elevator 100 may be moved while the door of the elevator 100 is open due to a failure of the motor driving the elevator control system or the rotary pulley 220. This may create anxiety or injury to passengers in elevator 100. The safety device 500 of the present invention prevents the elevator 100 from being moved while the door of the elevator 100 is opened.

2 is a view schematically showing the configuration of the safety device 500 of the present invention. Referring to FIG. 2, the safety device 500 includes a location provider 520, a detector 540, a controller 560, and a rope stabilizer 580. The location provider 520 and the sensing unit 540 determine whether the elevator 100 is moved beyond the set distance after the elevator 100 stops on each floor, and the elevator 100 is moved beyond the set distance. When moved, the controller 560 transmits an abnormal signal. The controller 560 controls the rope stabilizer 580 to operate when an abnormal signal is transmitted from the sensor 540. The rope stabilizer 580 forcibly stops the rope 300 by a mechanical structure. The safety device 500 stops the rope 300 when the elevator 100 moves more than a set distance in a state in which the door of the elevator 100 is opened, and the above-mentioned setting distance is a state in which the elevator 100 is lifted and lowered by a predetermined distance. Is selected to ensure that the passengers can safely get off the platform.

According to an example, a sensor (not shown) for detecting whether the door of the elevator 100 is opened or closed is mounted on the landing hall, and the detection unit 540 may be operated only when the door is opened. Optionally, the controller 560 provides information on whether the door is opened or closed from the control system that collectively controls the lifting device 1, and the controller 560 transmits an abnormal signal from the door opening and closing and the detection unit 540. The rope stabilizer 580 can be operated in combination.

Hereinafter, each component of the safety device 500 will be described in detail. The location provider 520 is fixedly installed in the hoistway 120 and is disposed on the floor where the hoist is disposed. The location provider 520 may be installed on an inner wall of the lifting passage 120 or may be coupled to be fixed to a structure fixedly installed in the lifting passage 120 such as a guide rail.

The detector 540 includes a reference position detector 542, a first abnormal position sensor 544, and a second abnormal position detector 546. The reference position is the position of the elevator 100 when the passenger arrives at the landing, and the door of the elevator 100 is opened when the elevator 100 reaches the reference position. The reference position detector 542 detects that the elevator 100 has reached the landing and informs the controller 560. The first abnormal position sensor 544 detects whether the elevator 100 has moved below the set distance and informs the controller 560, and the second abnormal position detector 546 moves the elevator 100 over the set distance. The controller 560 is detected and detected. The first abnormal position sensor 544 is spaced apart from the reference position detector 542 by the above-described set distance and disposed on the reference position detector 542, and the second abnormal position detector 546 is located by the reference distance as described above. And spaced apart from the reference position sensor 542.

3 is a perspective view illustrating an example of the location provider 520 and the sensing unit 540. Referring to FIG. 3, the location provider 520 protrudes from the inner wall of the lifting passage 120 toward the sensing unit 540 of the elevator. The locator 520 is installed on each floor and may have a rod shape.

The sensing unit 540 is installed at one edge of the upper wall of the elevator 100 and has a support 548 having a long rod shape in the vertical direction and three detectors 542, 544, and 546. Each of the detectors 542, 544, and 546 extends in a horizontal direction on one side of the support 548 facing the outside of the elevator 100. Each detector 542, 544, 546 is arranged to face up and down with each other and spaced apart by the above-described set distance. A sensor (hereinafter referred to as reference sensor) 542 disposed at the center performs a function of sensing a reference position, and a detector (hereinafter referred to as upper sensor) 544 arranged at the top performs a function to detect a first abnormal position. And, a detector (hereinafter, the lower sensor) 546 disposed below the bottom performs a function for detecting the second abnormal position. The spaced distance between the upper sensor 544 and the reference sensor 542 and the lower sensor 546 and the reference sensor 542 may be the same or different.

Each detector 542, 544, 546 has a body protruding from the support 520 toward the inner wall of the lifting passage 120. Each detector 542, 544, 546 has the same shape, and will be described below using the upper sensor 544 as an example. The body is formed with a groove 545 penetrating up and down and an open front face, and the Shanghai simultaneous positioning provider 520 of the elevator 100 passes through the groove 545. The body is provided with a sensor 549 that detects whether the location provider 520 is inserted into the groove 545. The sensor 549 has a light emitting part 549a installed in one side wall 545a forming the groove 545 and a light receiving part 549b provided in the other side wall 545b facing the one side wall 545a. It may be determined whether the location provider 520 is inserted into the groove 545 according to whether the light emitted from the light emitter 549a reaches the light receiver 549b. 4 is a plan view showing a state where the locator 520 is inserted into the groove 545 of the sensor. Unlike the above example, the sensor may be a magnetic sensor using a magnetic phenomenon.

When the elevator 100 first arrives at the platform and the door of the elevator 100 is opened, the location provider 520 is located in the groove 543 of the reference sensor. If the elevator 100 is moved downward while the door of the elevator 100 is open due to a malfunction of the elevator control system or a failure of a motor that rotates the rotary pulley 220, the location provider 520 may reference. Departs from the groove 543 of the detector and passes through the groove 545 of the upper sensor. When it is detected that the location provider 520 has passed the groove 545 of the upper sensor in the state in which the door of the elevator 100 is opened, the upper sensor 544 transmits an abnormal signal to the controller 560. The controller 560 operates the rope stabilizer 580 when an abnormal signal is transmitted while the door of the elevator 100 is opened.

FIG. 5 is a view showing a modified example of the safety device 600 of FIG. 3, and FIG. 6 is a view schematically showing a lifting device in which the safety device 600 of FIG. 5 is installed. 5 and 6, the safety device 600 has a location provider 620, a detector 640, a controller 660, and a rope stabilizer 680. Since the controller 660 and the rope stabilizer 680 are the same as the above-described embodiment, detailed description thereof will be omitted. 5 and 6, the locator 620 is installed at one edge of the upper wall of the elevator 100 and has a support 628 having a long rod shape in the vertical direction. One side of the support 628 facing the outside of the elevator 100 is provided with three rods 622, 624, 636 extending in the horizontal direction. Each rod 622, 624, 636 is disposed to face up and down with each other and spaced apart by the above-described set distance. A rod (hereinafter referred to as reference rod) 522 disposed at the center performs a function as a reference position providing unit, and a rod (hereinafter as an upper rod) 524 arranged at the top performs a function as a first or more position providing unit. The rod (hereinafter referred to as a lower rod) 526 disposed at the bottom performs a function as the second abnormal position providing unit. The detector 640 has a body installed to protrude inward from the inner wall of the lifting passage 120. The body is formed with a groove 642 penetrated up and down and the front face is opened, and the Shanghai simultaneous rods 622, 624, 636 of the elevator 100 pass through the groove 642. The body may be provided with a sensor 644 that detects whether the rods 622, 624, 636 are inserted into the grooves 642.

When the elevator 100 first arrives at the landing and the door of the elevator 100 is opened, the reference rod 622 is located in the groove 642 of the detector. If the elevator 100 is moved downward while the door of the elevator 100 is open due to a malfunction of the elevator control system or a failure of a motor that rotates the rotary pulley 220, the reference rod 622 moves to the groove 642. ) And the top rod 624 passes through the groove 642. When the detector 640 detects that the upper rod 624 has passed the groove 642 while the door of the elevator 100 is opened, the detector 640 transmits an abnormal signal to the controller 660. The controller 640 operates the rope stabilizer 680 when an abnormal signal is transmitted while the door of the elevator 100 is opened.

7 is a schematic view of rope anchor 580. Referring to FIG. 7, the rope stabilizer 580 is installed in the machine room 140 and includes a fixing plate 582, a moving plate 584, and a moving plate driver 586. The fixing plate 582 has a flat plate shape and is fixedly installed on the support frame 142 in the machine room 140. The moving plate 584 is spaced apart from the fixed plate 582 by a predetermined distance to face the fixed plate 582, and has a flat plate shape. The fixed plate 582 and the movable plate 584 may be connected by the frame 587. In addition, the frame 587 is formed with a guide rail (not shown) for guiding the movement of the moving plate 584, the moving plate 584 may be coupled with the bracket 588 that is linearly moved along the guide rail. . Both the fixed plate 582 and the moving plate 584 are made of a material having sufficient strength. The moving plate 584 is moved forward and backward by the moving plate driver 586, and a motor or a pneumatic cylinder may be used as the moving plate driver 586, but a large force is required to suppress the movement of the rope 300. Therefore, it is preferable to use a hydraulic cylinder. According to an example, the rope holder 580 is disposed between the above-described rotating pulley 220 and the auxiliary pulley 240, the rope 300 passes between the moving plate 584 and the fixed plate 582. Since the movable plate 584 and the fixed plate 582 are spaced apart from each other, the movement of the rope 300 is free when the elevator 100 is normally operated. However, when the problem occurs, the movable plate 584 is fixed to the fixed plate 582. It is moved forward to prevent the rope 300 from moving.

Optionally, the rope stabilizer 580 may be disposed between the rotary pulley 220 and the elevator 100 or between the auxiliary pulley 240 and the counterweight 400. In addition, the rope anchors 580 may have moving plates 584 positioned to face each other and driven respectively.

Next will be described the operation of the safety device 500 according to the present invention. 8 to 10 are views showing a process of operating the safety device 500 according to the present invention. Initially, the elevator 100 reaches the platform and the door of the elevator 100 is opened. As shown in FIG. 8, the movement of the rope 300 is free, and the locator 520 is inserted into the groove 543 of the reference sensor. When the elevator 100 is moved downward, the position provider 520 is inserted into the groove 545 of the upper sensor as shown in FIG. 9, and the upper sensor 544 transmits an abnormal signal to the controller 560. do. As shown in FIG. 10, the controller 560 operates the moving plate driver 586, and the moving plate 584 is moved forward toward the fixed plate 582 to firmly hold the rope 300. As a result, the elevator 100 is stopped. In the above embodiment, only the case in which the elevator 100 is moved downward while the door of the elevator 100 is opened, but the elevator 100 is moved upward so that the position providing unit 520 moves the lower detector 546. Even if it passes, the rope stabilizer 580 stops the rope 300.

According to the present invention, when the elevator is moved while the door of the elevator is open, the elevator is forcibly stopped, thereby preventing the safety accident.

Claims (14)

An elevator disposed in the elevating passage; A rope coupled to one of the elevators and moved by rotation of the pulley; And, If the elevator is moved more than a set distance in the state of the door of the elevator is provided with a safety device to stop the elevator, The safety device, A position providing unit fixedly installed in the lifting passage; A detector installed in the elevator and receiving position information of the elevator from the position provider; A rope fixing device for stopping the rope by catching it; And And a controller for receiving an abnormal signal from the sensing unit when the elevator moves more than the set distance in the state in which the door of the elevator is opened, and operating the rope stabilizer when the abnormal signal is received. . The method of claim 1, The detection unit, A reference position detector for detecting a reference position which is a position of the elevator when the elevator is stopped and the door of the elevator is opened; And a first abnormal position detector positioned above the reference distance detector by the set distance and detecting whether the elevator moves below the set distance. The method of claim 2, And the sensing unit further comprises a second abnormal position detector positioned downward from the reference position detector by the set distance and detecting information on whether the elevator is moved above the set distance. The method of claim 3, The sensing unit further includes a support rod installed in the elevator, The reference position sensor, the first abnormal position sensor, and the second abnormal position sensor extend in a rod shape horizontally in one direction from the support rod, penetrate upward and downward, open a front face, and provide the position. Elevating device, characterized in that it has a body formed with a groove that is a passage through which the machine passes. The method of claim 3, The support rod is a lift device, characterized in that installed on the upper wall of the elevator. The method according to any one of claims 1 to 5, The rope stabilizer, A fixing plate fixedly installed at one side of a passage through which the rope is moved; A moving plate positioned to face the fixed plate on the other side of the passage where the rope is moved; And a driver for advancing and reversing the moving plate toward the fixed plate by the control of the controller. The method of claim 6, The rope fixing device is characterized in that installed in the machine room located above the lifting passage. In the safety device for preventing the elevator from moving in the state of the door of the elevator, A fixing plate surrounding a part of the rotating pulley and fixedly installed at one side of a rope coupled to an elevator; A moving plate located on the other side of the rope so as to face the fixed plate; A driving unit for advancing and reversing the moving plate toward the fixed plate; A position providing unit fixed to each floor in the hoistway; A detection unit fixed to the elevator and detecting position information of the elevator in a state in which the door of the elevator is opened; And a controller configured to operate the driving unit by receiving an abnormal signal from the sensing unit when the elevator is moved more than a predetermined distance in the state in which the door of the elevator is opened. The method of claim 8, The detection unit, A reference position detector for detecting a reference position which is a position of the elevator when the elevator is stopped and the door is opened; A first abnormal position detector, which is positioned spaced apart by the set distance from the reference position detector, and detects whether the elevator is moved below the set distance; And a second abnormality position sensor positioned apart from the reference position detector by the set distance and detecting whether the elevator is moved above the set distance. The method of claim 9, The sensing unit further includes a support rod installed in the elevator, The reference position sensor, the first abnormal position sensor, and the second abnormal position sensor are formed to extend in parallel in one direction from the support rod, and are vertically penetrated and open in front to provide a passage through which the position provider passes. Safety device characterized in that it has a body. An elevator disposed in the elevating passage; A rope coupled to one of the elevators and moved by rotation of the pulley; And, If the elevator is moved more than a set distance in the state of the door of the elevator is provided with a safety device to stop the elevator, The safety device, At least one detector fixedly installed in the lifting passage; A position providing unit installed in the elevator and providing position information of the elevator to the detector; A rope fixing device for stopping the rope by catching it; And And a controller for receiving an abnormal signal from the detector when the elevator moves more than the set distance and operating the rope stabilizer when the abnormal signal is received while the elevator door is opened. The method of claim 11, The location provider, A reference position providing unit for providing the sensor with a reference position which is a position of the elevator when the elevator is stopped and the door of the elevator is opened; A first abnormal position providing unit which is spaced apart from the reference position providing unit by a predetermined distance and informs the detector of information about whether the elevator is moved below the predetermined distance; And a second abnormality position providing unit which is positioned downward by the set distance from the reference position providing unit and informs the detector of information on whether the elevator is moved above the set distance or more. The method of claim 12, The position provider further includes a support rod installed in the elevator, The reference position providing portion, the first or more position providing portion, and the second or more position providing portion extend in a rod shape horizontally in one direction from the support rod, The detector, A body having a groove formed therein, the groove being a passage through which the reference position providing part, the first abnormality providing part, and the second abnormality providing part pass through the front surface; And a sensor for detecting whether the location provider passes through the groove. The method of claim 13, The rope stabilizer, A fixing plate fixedly installed at one side of a passage through which the rope is moved; A moving plate positioned to face the fixed plate on the other side of the passage where the rope is moved; And a driver for advancing and reversing the moving plate toward the fixed plate by the control of the controller.